SMTP 发送邮件

        public void SendEmail(string smtpServer, string mailFrom, string userPassword, string mailTo, string mailSubject, string mailContent)
        {
            // 邮件服务设置
            SmtpClient smtpClient = new SmtpClient();
            smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式
            smtpClient.Host = smtpServer; //指定SMTP服务器
            smtpClient.Credentials = new System.Net.NetworkCredential(mailFrom, userPassword);//用户名和密码

            // 发送邮件设置       
            MailMessage mailMessage = new MailMessage(mailFrom, mailTo); // 发送人和收件人
            mailMessage.Subject = mailSubject;//主题
            mailMessage.Body = mailContent;//内容
            mailMessage.BodyEncoding = Encoding.UTF8;//正文编码
            mailMessage.IsBodyHtml = true;//设置为HTML格式
            mailMessage.Priority = MailPriority.Low;//优先级

            try
            {
                smtpClient.Send(mailMessage); // 发送邮件
            }
            catch (SmtpException ex)
            {
                throw new Exception(ex.Message);
            }
        }

     public void SendEmialForResetPassword(string mailTo, string mailSubject, string mailContent)
        {
            List smtp = GetSMTP();
            var smtpServer = smtp.Where(a => a.new_name.Equals("SMTPServer")).First().new_value;
            var mailFrom = smtp.Where(a => a.new_name.Equals("SMTPUser")).First().new_value;
            var userPassword = smtp.Where(a => a.new_name.Equals("SMTPPassword")).First().new_value;
            SendEmail(smtpServer, mailFrom, userPassword, mailTo, mailSubject, mailContent);
        }

是163邮箱，需要开放端口25